Core One Filament Sensor Engaging Mechanism
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Remixed the Core One's filament sensor for easy flexible filament loading
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Updated at source:
Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- GNU General Public License v2.0
Summary
This is a remix of the Core One's filament sensor that adds a disengagement mechanism, similar to the one found on the newer Core One L.
The Problem: The standard sensor's steel ball makes loading flexible filaments (like TPU) nearly impossible.
The Solution: This remix adds a small compartment for a 2-position snapping switch. This switch acts as a lever to push the sensor's lever up and moving the steel ball out of the way, allowing flexibles to be loaded easily.
It has two positions:
- Engaged: (Normal operation for rigid filaments)
- Disengaged: (For loading flexible filaments)
The snapping switch gives a very satisfying tactile "click" when toggled.
🛠 Bill of Materials (BOM)
- Uses all original hardware from the filament sensor (no new screws or inserts needed).
- The 2 printed parts from this download.
🖨 Print Settings
- Material: PETG or ASA recommended.
- Settings: Use standard Prusa-recommended settings (e.g., 0.2mm layer height, 15% infill, etc.).
- Supports: No
🔧 Assembly
- Print the two parts from this file.
- Assemble the sensor exactly as the original, using all the original hardware.
- Insert the printed switch into its slot in the printed housing.
🙏 Acknowledgements
Special thanks to imax for reverse-engineering the original STL file and providing the STEP file that made this remix possible.